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प्रश्न
Give one example of a food chain having four organisms. Below each organism write the three appropriate terms from the part (a) above which you think it represents.
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उत्तर
Grass → Grasshopper → Frog → Bird
Producer Primary consumer Secondary consumer Tertiary consumer
Autotroph Herbivore Carnivore Large carnivore
1st trophic level 2nd trophic level 3rd trophic level 4th trophic level
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संबंधित प्रश्न
State with reason any two possible consequences of elimination of decomposers from the Earth.
Which of the following constitute a food-chain?
Which category of organisms forms the starting point of a food chain?
What are the various steps of food chain called?
Write down a food chain with five links in it.
Write a common food chain of a pond ecosystem having four links.
Give two differences between food chain and food web.
The sea water contains water beetles, tadpole, fish and weeds.
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The following is a food chain that ends with human :
How does this food chain differ form a usual food chain involving human such as : plants → goat → human?
A food chain occurring in the sea which provides food for many people can be written as :
phytoplankton → zooplankton → X → Y
Name the organism which Y could be.
If 5 joules of energy is available at producer level (plants), then how much energy will be transferred to the lion in the following food chain?
Plants → Goat → Lion
Fill in the following blank with suitable word :
Pesticides enter the food chain at the ...........level
Which common pesticide has accumulated in human body in considerable amounts?
Consider the following food chain
(i) Plants → Mice → Snakes → Hawks
(ii) Plants → Mice →Hawks
If energy available at the producer level in both the food chains is 100 J, in which case will hawks get more energy as food and by how much? Justify your answer.:
How much energy will be available to hawks in the food chain comprising hawk, snake, paddy and mice, if 10,000 J of energy is available to paddy from the sun?
If the energy available at the producer level in a food chain is 150 J, how much energy will be transferred to : tertiary consumer?
(a) 15 J
(b) 10 J
(c) 1.50 J
(d) 0.15 J
Green plants utilize ______ percent of sun’s energy to prepare their food by the process of photosynthesis.
______ are organisms that are able to produce their own organic food.
Assertion (A): The energy which passes to the herbivores does not come back to autotrophs.
Reason (R): The flow of energy in a food chain is unidirectional.
